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Premium Quality: Magnetic Marbles is made of high-grade construction all the way through
The connections between the base pairs are also clearly shown
Cubes Set of 6 Kinds Materials
you can take your play to the next level
Moh's Hardness Crystalline Form Safety Essentials Premium Quality: Magnetic Marbles isHoused in a compartmented collection box, and an identification list is included. 9 numbered samples, 1" x 1" streak plate magnet glass slide copper strip. Minerals: Talc, Selenite, Calcite, Fluorite, Apatite, Microcline, Quartz, Topaz, Corundum All samples are pure crystalline forms to ensure accurate test results. You can also perform other physical properties tests with the included materials. If you need custom order with different sizes design,
